What are the consequences of not changing transmission oil?

Do LED lights need to be installed with ballasts?

The vast majority of vehicle models do not require the installation of ballasts for LED headlights. However, in practice, it is still necessary to analyze based on the specific vehicle model. For example, the Teana's LED bulbs come with an original set of ballasts, so replacing the LED lights also requires replacing the ballasts. There are two types of ballasts: single-unit ballasts and split ballasts. The functions of ballasts are: 1. They have a cold start current of 6.5A (common ballasts are 8.5A~9A or even higher), ensuring fast startup. 2. They feature a wide voltage design, ensuring normal startup under both low and high voltage conditions. 3. During hot starts or when switching power for lighting, the startup current is 5A, reducing the load on the vehicle's power supply due to frequent switching and its impact on other electrical devices in the car. Low current startup prevents bulb aging or light decay and minimizes interference with other vehicle electronic devices.

6

2

Share

Can Cola Clean Car Headlights?

Cola can be used to clean car headlights. Pour cola onto the headlights, then wipe them with a clean towel. If the effect is not noticeable after one application, repeat the process several times. Finally, rinse with clean water and dry. Cola contains acidic substances such as carbonic acid and citric acid, making it an effective cleaning agent. It is particularly effective against rust and grease. For rust on surfaces like paint or chrome strips, which would otherwise require repainting or replacement at a repair shop, cola can clean it off easily unless the rust is severe enough to expose the primer. Headlight covers are typically made from polycarbonate or polymethyl methacrylate plastic, which can become dirty, yellowed, and aged over time, reducing light transmission and dimming the headlights, thus affecting driving. Prolonged exposure to high temperatures, UV rays, and ozone in the air can accelerate the aging of headlight covers. Additionally, prolonged exposure to sunlight is a major cause of headlight yellowing. Avoiding direct sunlight is the simplest way to prevent headlights from turning yellow.

3

2

Share

At an intersection, should straight-going vehicles yield to left-turning or right-turning vehicles?

Yielding to either left-turning or right-turning vehicles when going straight is not in compliance with regulations. The correct yielding rule is that turning vehicles must yield to straight-going vehicles. When straight-going vehicles encounter turning vehicles, it is the turning vehicles that must yield to the straight-going ones, not the other way around. If a traffic accident occurs due to a turning vehicle failing to yield to a straight-going vehicle, the turning vehicle will bear full responsibility. Below are the relevant regulations: When motor vehicles pass through intersections without traffic signals or traffic police directing traffic, in addition to complying with the provisions of Article 51, Paragraphs (2) and (3), they must also adhere to the following rules: 1. If there are traffic signs or markings, yield to the party with the right of way. 2. If there are no traffic signs or markings, stop before entering the intersection, look around, and yield to vehicles coming from the right; vehicles on minor roads must yield to those on major roads. 3. Turning motor vehicles must yield to straight-going vehicles. 4. Right-turning motor vehicles traveling in the opposite direction must yield to left-turning vehicles.

18

1

Share

How to Schedule Subject 4 Exam?

Subject 4 exam scheduling can be done on the official website of the local traffic police department's vehicle management office. Below is relevant information: 1. Notes for Subject 4 exam scheduling: No ticket number is required for Subject 4, you can directly schedule the exam. There is no limit to the number of attempts for Subject 4, as long as it is completed within the validity period of the skill certificate. If you fail the exam, you must wait 10 days before rescheduling. Students whose certificates are about to expire should pay attention to the timing. After passing the Subject 4 exam, the driver's license will be issued on the same day. 2. Notes for canceling a scheduled exam: After submitting the scheduling request, you can cancel the exam appointment online, but it must be done before the appointment is confirmed. After cancellation, the user's priority ranking remains unchanged. For students who have successfully scheduled an exam but cannot attend due to unforeseen circumstances, the exam appointment cannot be canceled online. Please cancel at least one day in advance at the designated window of the vehicle management office. After successful cancellation, the exam slot will no longer be reserved, and you will need to reschedule the exam to take it.

8

5

Share

Why Does the Passenger Side Window Fog Up?

Window fogging occurs simply due to the large temperature difference between the inside and outside of the car. Here are some methods to defog: 1. Use the air conditioning effectively: While driving, you can first turn on the cooling air; if you want a thorough solution, it's best to turn on the heating air before driving or when parked on the roadside until the fog completely disappears. 2. Open windows for air circulation: Based on the principle of fogging, you don't even need to use the air conditioning. Just slightly open both side windows to allow air inside the car to circulate. The advantage of this method is that as the air inside and outside the car circulates, the temperature inside and outside the car will roughly equalize, preventing fogging. 3. Purchase specialized anti-fog products: Anti-fog sprays can be applied to the inside of the windshield and wiped evenly. There are also special anti-fog towels available on the market, which come in dry and wet versions. These towels are more convenient than sprays—just wipe and they work—but their effectiveness is shorter, usually lasting no more than 24 hours.

20

2

Share

How Long Does a Minor Maintenance Take?

A minor maintenance typically takes between twenty minutes to an hour. Here are some relevant details: 1. A minor maintenance is recommended every six months or every 5,000 kilometers driven. 2. The scope of a minor maintenance is relatively limited, primarily involving inspections of wear-prone components such as engine oil and the three filters (air, oil, and fuel). Generally, the first maintenance for a car is recommended at 5,000 kilometers or one year of use, while the second maintenance is recommended at 10,000 kilometers or two years of use. The main focus of these services is inspecting the car's three major components: the engine, chassis, and transmission. 3. It is essential to keep detailed records of all maintenance work for future reference if issues arise. Typically, major maintenance should be performed at a 4S dealership, as they offer higher quality assurance despite potentially higher costs. For minor maintenance, you can opt for external auto repair shops, ensuring that original manufacturer fluids are used—this won't harm the vehicle and can significantly reduce costs. However, always choose reputable repair shops and high-quality parts to avoid post-maintenance quality issues.

9

1

Share

What are the consequences of not changing transmission oil?

Do LED lights need to be installed with ballasts?

Can Cola Clean Car Headlights?

At an intersection, should straight-going vehicles yield to left-turning or right-turning vehicles?

How to Schedule Subject 4 Exam?

Why Does the Passenger Side Window Fog Up?

How Long Does a Minor Maintenance Take?

Should the old driver's license be destroyed?

What does the no honking sign look like?

What does a gecko on a car mean?

What is the appropriate tire pressure for small cars in summer?